Hi, My 170 '08 TDI has decided to get thirsty for oil. The standard VAG dipstick is useless but I notice that VCDS has an oil measurement value in the engine block. At the moment my oil level is measuring 29mm (which is just above the max level on the dipstick as I just topped her up). Does anyone know what level in mm would trigger the amber oil warning and what the ideal max fill level is (I assume 28 or 29mm). Thanks.